Product model: battleship true wireless Bluetooth earphones Product size: 80 * 38 * 20mm Product material: Zinc alloy+PC Bluetooth version: V5.3 Transmission distance: 8 meters Frequency response range: 20~20000 Hz Usage time: approximately 5 hours Charging time: approximately 1.5 hours Charging interface: USB Type-C Executive standard: GB 8898-201 |
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